Matching (9) Match items in column A to column B

Column a Column b
1.
A.
Dense
2.
B.
Outer Core
3.
C.
Mantle
4.
D.
Lithosphere
5.
E.
Inner Core
6.
F.
Crust
7.
G.
Asthenosphere
8.
H.
Core
9.
I.
Convection